JP2980152B2 - Ventilation port mounting structure to outer wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a ventilation port to an outer wall.

[0002]

2. Description of the Related Art An outer wall structure of a house or the like in a cold region is a heat insulating structure in which a heat insulating mat, a waterproof sheet, a heat insulating space, or the like is incorporated between an inner wall material and an outer wall material so that a room temperature in a cold season is not affected by an outside air temperature. It is usually said that.
By the way, since these outer wall structures have high heat insulation and high airtightness in the room, it is necessary to provide one or two or more ventilation ports according to the size of the room volume.

Conventionally, as shown in FIG. 5, as a structure for attaching a ventilation port to the outer wall material, as shown in FIG. 5, an inner wall material W ₁ , a moisture-proof sheet W ₂ , a heat-insulating mat W ₃ , a heat-insulating board W ₄ , a moisture-proof sheet W ₅ , a ventilation space W
₆ , and an outer wall material W ₇ , a heat insulating wall W is provided with a through hole H extending from the room to the outside, and a corrosion-resistant ventilation tube P, for example, a round tube or a square tube P made of synthetic resin is disposed therethrough. and to fixed, the outdoor side of the ventilation tube P, fitted waterproof hood F with inserted pipe F ₂ to the flange portion F ₁ and the base inner surface to the base periphery, the flange portion F ₁ and the outer wall member W ₇ Is sealed with a sealing material S, and a ventilation fan M is provided on the indoor side as required, for example.

[0004]

BACKGROUND Problems of the Related Art However, in the case of vent structure for mounting the exterior wall material, leak indoor warm air to the outer walls W ₇ rear surface of the ventilation space W _6, the outer wall occurs inside condensation by internal and external temperature difference in this part frost damage phenomenon of wood W ₇ there is a problem occurs. That is, in the case of the ventilation port mounting structure to the outer wall material,
Figure between R ₁ and the vent pipe P inner surface and the waterproof hood F of the outdoor side outer surface and the exterior wall member W ₇ of the vent tube P as shown in 6 inserted pipe F ₂
Outer surface seals R ₂ is hardly completely performed between the waterproofing like hood F in the provided the insect net N is deteriorated exhaust property and clogged with dust such, moisture chamber at a pressure such as by forcing the fan M As shown by the arrows, the air bearing the gap R ₂ ,
Leak into the ventilation space W ₆ through R _1, it is to condense on the outer wall member W ₇ inner surface.

[0005] Such a problem can be prevented by filling the gaps R ₂ and R ₁ with a sealing material. However, the installation work of the ventilation tube P is performed after the outer wall is completed, and the waterproof hood F is connected to the ventilation tube P. Is usually carried out after completion of the mounting work, the gaps R ₂ and R ₁ are covered and covered by the flange portion F ₁ , and even if a sufficient amount of sealing material is provided and fitted, the gap R ₂ I can not be sure whether you are completely filled with R _1. Thus, incomplete sealing often occurs.

[0006]

SUMMARY OF THE INVENTION In view of the above problems, the present invention does not cause leakage of room air from a ventilation opening provided through a heat insulating wall to a heat insulating space, and furthermore, a sealing material for these necessary parts. An object of the present invention is to provide a structure for attaching a ventilation port to an outer wall material in which filling and confirmation thereof can be easily performed.

[0007]

That is, according to the ventilation port mounting structure for an outer wall of the present invention, a ventilation tube 2 penetrating the outer wall 1 is inserted into a through hole 1A formed in the outer wall 1, and the ventilation tube 2 is provided. A waterproof hood 3 attached to the outdoor end of the hood 3 has its base 3A externally fitted to the outer surface of the ventilation tube 2 and attached.
The flange 3B provided on the base 3A is fixed to the outer surface of the heat insulating layer 1D on the inner surface of the outer wall plate 1B via the waterproof layer 4, and the seal ring 5 is pressed into the gap between the inner surface of the waterproof hood 3 and the ventilation tube 2. The sealing material 6 is provided in a gap between the through hole 1A formed in the outer wall plate 1B and the outer surface of the waterproof hood 3.
Is filled.

[0008]

Next, an embodiment of the present invention will be described. FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of the embodiment, FIG. 3 is an enlarged cross-sectional view of a main part of another embodiment, and FIG. FIG.

The structure for attaching a ventilation port to an outer wall material according to the present invention is as follows.
A ventilation tube 2 penetrating the outer wall 1 is inserted into a through hole 1A formed in the outer wall 1, and a waterproof hood 3 attached to the outdoor end of the ventilation tube 2 fits its base 3A to the outer surface of the ventilation tube 2. The flange 3B provided on the base 3A of the waterproof hood 3 is fixed to the outer surface of the heat insulating layer 1D on the inner surface of the outer wall plate 1B via the waterproof layer 4, and the gap between the inner surface of the waterproof hood 3 and the ventilation tube 2 is provided. The seal ring 5 is press-fitted, and a sealing material 6 is filled in a gap between a through hole 1A formed in the outer wall plate 1B and the outer surface of the waterproof hood 3.

In the above embodiment, the outer wall 1 is the outer wall plate 1
B, a ventilation space 1C, a heat insulating plate 1D, a heat insulating mat 1E, an interior wall plate 1F, and the like. The base 3A of the waterproof hood 3 is fixed to the heat insulating plate 1D located on the inner surface of the outer wall plate 1B. The ventilation tube 2 is made of a corrosion-resistant material, for example, a synthetic resin such as a vinyl chloride resin.

The waterproof layer 4 for fixing the base of the waterproof hood 3 to the heat insulating plate 1D is fixed by, for example, a strong double-sided adhesive tape having a waterproof property or a combination thereof with a fixing nail or a screw. A projection 3C for positioning the end of the ventilation tube 2 is provided on the inner surface of the base 3A of the waterproof hood 3 as shown in FIG. 2, and a seal ring 5 is inserted between the projection 3C and the end surface of the ventilation tube 2. Alternatively, as shown in FIG. 3, a configuration may be adopted in which the ventilation tube 2 is inserted between the outer surface and the inner surface of the base 3 </ b> A of the waterproof hood 3. As the seal ring 5, a seal packing or the like having a rubber-like elasticity and having a thickness to be compression-inserted into the gap is used.

In the drawing, reference numeral 7 denotes an insect-proof net provided in the waterproof hood 3, and from the viewpoint of preventing clogging, an insect-proof and coarse-grained one is used. In addition, it is desirable to provide a water droplet guide plate 3E on the lower surface of the waterproof hood 3 in order to prevent the condensation water droplets in the ventilation tube or the rain water droplets blown into the waterproof hood from flowing along the outer wall plate 1B. .

[0013]

According to the structure of the present invention, the opening of the ventilation tube 2 is covered with the waterproof hood 3, and the base of the waterproof hood 3 crosses the ventilation space 1C of the heat insulating wall and its inner layer. Is fixed to the surface of the heat insulating layer 1D via the waterproof layer, so that the humid indoor air in the ventilation tube 2 is prevented from entering the ventilation space 1C. Further, since the seal ring 5 seals between the inner surface of the base of the waterproof hood 3 and the outer surface of the ventilation tube 2, it also prevents dew condensation water from entering along the contact interface between the ventilation tube 2 and the waterproof hood 3. Is done. Further, the construction of the ventilation port mounting structure to the outer wall according to the present invention is performed in the order of fixing the heat insulating layer 1D which is the inner layer of the outer wall plate 1B and then attaching the outer wall later. In this case, if only the gap between the outer wall plate 1B and the waterproof hood 3 is sealed, the ventilation space 1C can be waterproofed.

[0014]

As described above, according to the present invention, the connection part where moisture may leak from the ventilation path is formed on the outer surface of the heat insulating layer 1D which is the inner layer of the outer wall plate 1B. The contact interface is sealed by the seal ring 5, so that the ventilation to the ventilation space 1C constituting the outer wall 1 and the waterproofing can be surely achieved, and the sealing of the ventilation port can be easily performed from the outside after the outer wall plate 1B is attached. Since it can be carried out in a state that can be observed in a short time, it has various effects such as ensuring the sealing property.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the embodiment.

FIG. 3 is an enlarged sectional view of a main part of another embodiment.

FIG. 4 is a front view of the embodiment as viewed from the outdoor side.

FIG. 5 is a sectional view of a conventional example.

FIG. 6 is an enlarged sectional view of a main part of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer wall 1A ... Through-hole 1B ... Outer wall board 1D ... Heat insulation layer 2 ... Ventilation cylinder 3 ... Waterproof hood 3A ... Base of waterproof hood 3B ... Flange 4 ... Waterproof layer 5 ... Seal ring 6 ... Sealing material

Claims (1)

(57) [Claims] 1. A ventilation tube 2 penetrating an outer wall 1 is inserted into a through hole 1A formed in the outer wall 1, and a waterproof hood 3 attached to the outdoor end of the ventilation tube 2 has its base 3A connected to the ventilation tube. 2, a flange 3B provided on the base 3A of the waterproof hood 3 is fixed to the outer surface of the heat insulating layer 1D on the inner surface of the outer wall plate 1B via the waterproof layer 4, and the inner surface of the waterproof hood 3 A seal ring 5 is press-fitted into a gap between the cylinder 2 and a sealing material 6 is filled in a gap between a through hole 1A formed in the outer wall plate 1B and an outer surface of the waterproof hood 3. Ventilation port mounting structure to outer wall.